UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Example URL:
https://habr.com/post/423889/

Steps to reproduce the problem:
1. Load page (it takes about 3 times longer in Chrome than in Firefox)
2. Try to scroll the page (it does that slowly and with high CPU consumption), it's painful to enter comments
3. Compare to Firefox (page is loaded slowly because it's large one, but scrolling is fast and it's very easy to enter comments

P.S. You cound't enter comments without registration but the problem is the same as with scrolling: timeout after keypress is uneven and sometimes few seconds pass after you click the button and see anything on screen.

What is the expected behavior?
You could use page normally

What went wrong?
People on that same page discuss how Chrome is the new IE (slow and unreliable), but that's not relevant to the issue on hand.

Does it occur on multiple sites: N/A

Is it a problem with a plugin? No 

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 69.0.3497.100  Channel: stable
OS Version: 
Flash Version: 

I have tested everything on Glinux desktop, but comments imply that Chrome is always slow and Firefox is always fast